ztjndorf



3 Sheets-Sheet 1.

'(N Model.)

H'. ZNDORP. BUTTON MACHINE.

Batented Mar. 17, 1891.

TME News params co4, moro-mno., msu N (No Model.) v 3 Sheets-Sheet 2.

H. ZNDORF. BUTTON MACHINE No. 448,569. Patented Mali. i7, 1891.

3 Sheets-Sheet 3.

(N o Model.)

H. ZNDORP.

BUTTON MACHINE.

Patented Mar. 17, 18.911.

No. 448,569.l

TH: Nob-oms ruins co, mom-uma., wAsmNGTcu, n4 c.

ATFN FFCE@ HEINRICH ZNDORF, OF BARMEN, GERMANY.

cortona/incense.

SPECFICATION forming part of Letters Patent No. 448,569, dated March1'7, 1891i.

Application filed October 30, 1890. Serial No. 369,831. (No modeld To@ZZ whom it may concern.-

Be it known that l, l-Innvntcn ZNDoaF, a Prussian subject, residing atRittershausen, in Barmen, Germany, (in Rhenish Prussia) have inventedne7 and useful Improvements ina Machine for Making the Lower Parts of aButton with Vire Eyelets, of which the following is a specification.

'lhis invention relates to a machine for preparing the under parts ofbuttons, said under parts consisting ot a cap of thin metal andan eyesecured to the cap. The attachment ot the eye, Which is formed bybending a piece of wire, is accomplished by inserting the ends 0E thewire or legs of the eye into the cap and bending them over on the insidethereof.

In the accompanying drawings the machine is shown complete and also indetail. i

Figure l is a vertical section alongxm, Fig.

3. Fig. 2 is a vertical section along y y, Fig. 3. Fig. 3 is a plan viewof the machine.

Figs. liL and lb show a cap and also a cap united with an eye. Fig. etis a detail viewof a portion of the disk, showing the spur for receivingthe button-eye. vieW on the line .a e', Fig. l. Fig. 6 is a detailelevation of the Wire-feeding and eyeforniing devices. Fig. 7 is acentral sectional view ot the same. Fig. S is a horizontal sectionalview of the cylinder Which carries the punch mechanism. Fig. D is adetail elevation ot' the punch-moving devices.

To prepare the under parts of buttons, the machine contains three parts,the first consisting of an apparatus for making the Wire eyes o, Fig.lb, the second of a device for making the caps c, Fig. l, and the lastof the device by which the bending over 0 2 the legs of the eye on theinside ot the cap is accomplished. The motion of these parts is obtainedfrom the shaft \V, journaled in the trame or support et' the machine,and which is actuated by pulley R, Fig. 2, or, if desired, by handorfoot power.

The construction of the eye, as also the apparatus therefor, isdescribed later on. The uniting of the eye and cap is accomplished asfollows: The eye is passed from the eyeforming apparatus onto a spur d.(Shoxvn in Fig. 4L in section in face view and plan vient) This spur dprojects from the edge of a disk B, which turns intermittently at equalinter Fig. 5 is a sectional t thereon in Fig. 3.) The disk B is setintothe table A of the machine. The spur d, which occupies the position l,Fig. 3, receives the eye from the eye-forming apparatus. The disk B hasits upper face iiush With the top of the table A, and said disk carriessiX spurs d at equal distances apart. Each revolution of the shaft XVimparts to the disk B onesixth or a rotation, so that the spurs d, oneafter another, come to the position l. W'hen the spur atl has receivedan eye, it is cai'- ried by the next movement to the position 2, the eyehaving its legs pointing upward and gliding past the inner edge of therecess in table A. Ihile the disk Bis at resta cap is placed onto theeye-legs, so as to occupy the position shown in view II, Fig. lb. On thedisk B continuing to revolve the eye and cap come to the position 3,Fig. 3. At this point a descending plunger causes a partial spreading ofthe eye-legs, so as to bring them tothe position shown iii view III,Fig. lb. Upon a further one-sixth revolution another plunger completelyspreads the eye-legs, as seen in view IV, Fig. lb, so as to firmly unitethe eye and cap. The following one-sixth revolution carries the completeunder part of the button to the position 5, Fig. 3, over an opening O intable A, and a iiat spring or scraper N, secured to the table, scrapesthe eye from the spur tl, and the under part-of the button, fallingthrough the opening O, can be carried by a suitable chute to a box orreceiver. At 6 the spur is empty, and at l it again receives'an eye fromthe eye-forming apparatus.

To the under side of the disk B is secured a shaft a,Figs. l and 2,which passes through a thickened part of the table A, and is providedwith a ratchet s, engaged by a paWl 7n, mounted on the lever 7i,fulcrumed on. shaft a. A spring t holds the paivlin engagement With theratchet. As seen in Fig. 5, which is a section along c, Fig. l, theratchet s contains six teeth equal distances apart, so that the shaft aand disk B can be given one-sixth of a revolution by a correspondingmovement ot' lever it. Said lever is held by a spring f in the positionshown by broken lines in Fig. 5, so that the paivl 7c lies directly infront of a tooth of the ratchet-Wheel s, and the movement of the leveraway from the stop or rest vals lin the direction of the arrow. (Shown/i is caused by a lug 1/ on shalt W, the passage of the lug turning` thelever sufficiently to move the ratchet one tooth or one-sixth of arevolution. After the lug has passed on, the springf brings the lever 7Lback to the dotted position, Fig. 5, so that the pawl Zt' passes back ofthe next tooth, the wheel s remaining stationary the while. lt is thusevident that upon each revolution of the shaft lV the disk B is turnedone-sixth of a revolution. To keep the disk securely in its recess inthe table A, a spring n, Fig. l, is arranged on shaft a, which draws thedisk securely into its recess. Over the disk B the cylinder C iscentrally arranged and supported byarm G. The cylinder carries the punchmechanism for punching the caps, and also guides the plungers forspreading' and depressing the eye-legs. The punching mechanism (shown inFig. 2 in face View and in Fig. 0 in side elevation) consists of a punchor plung'er carried by an arm t', secured to the rod (j, which canreciprocate vertically in the cylinder C, and of a die b, having acentral stud or counter-punch b', Figs. 2 and 3, and secured to thetable A.

To prepare a cap I place a plate or blank, Fig. l;L ot a proper sizeover the die b, and the punch is then allowed to drop onto the blank, sothat the latter is forced into the die, and provided by the punch b witha hole for the eye-legs or Shanks. The punch Z has a proper hole for theentrance of the counterpunch Z1. The descending force of the punch iscaused bythe weight g on guide-rod (/,and the weight is raised by a rodm', running in guides m m. The upper end of this rod rests freely underthe weighty. The rod is raised by a bell-crank lever t' i,engaging theshoiilder m2 and swinging on fulcruin e on standard e. The bell-cranklever is actuated by rodp, running in guidep and striking' againstlevenarxn 2". The 'free end ot' rod p rests against a raised track orelevated rim p2 on the disk E, mounted on shaft W. This raised track hasa portion cut away at p3, Fig. l. At one side of this cut-out the trackp2 ends abruptly and begins again at the other side with a gradual rise.When the track p2 has been carried with its abrupt end to the rod p,said rod passes into the cut-out and the level' z' t" and rod m arereleased, so that the weight g and punch t can drop onto die Z) and forma cap. After the passage of the cut-out 213 the incline or gradual riseof track p2acts on rod p. This incline ends in a somewhat less elevatedportion of thetrack, so that the punch t at rst is only raised part wayand remains a short time partly raised, during which period said punchis turned with its rod g, so that the center of the punch comes to restover the position Fig. 3, of disk B. The cap, which after its formationclings to the punch t, is brought by this swing' ot' the punch into suchposition that the hole in the cap rests directly over the Shanks of theeye at 9, and then the punch if is entirely raised by the highestpart oftrack p9, acting upon the parts p i' L" my', and said punch remains soraised until it again drops into the die. The turning' of the punch fromits position over the die b to its position over the eye at 2, Fig. 3,is effected by a lever r, which is so arranged that it can turn on rodg, but does not partake of the i'ise and fall of said rod. For thispurpose the hub of the lever has a groove, into which enters a pin 1",secured to cylinder C, and the rod g has a longitudinal groove n', intowhich enters a stud Won the hub of the lever. It is thus seen that therod g must follow the rotation of lever yr, while said rod is free tomove vertically as the groove n and stud n2 form a movable connection.

To the lever r is connected a link Z, united to the bell-crank lever ZZ2, fulcruined at c. The lever-ai'in Z2 is connected to the rod Z3,running in guide p and actuated by the raised rim or track Zt, locatedadjacent to track p2 on disk E. The track Z'l consists only of a shortelevation, which, striking the tree end of rod Z3, moves the latter, soas to swing the lever Z Z2 and move link Z, so as to turn the lever r.The punch tis thus brought into position" over the die Zi, as seen inFigs. 2 and S, which latter represents a section along rc m', Fig. 2.When the raised track ZA1 has passed the rod Z3, the spring Z5 pressesthe rod forward or outward and the lever r moves in the oppositedirection, so that the punch t comes to position 2, Fig. 3, or over theeye. Then the punch has reached this position, it is entirely raised, asalready described. To scrape off the cap from the punch on the ascent ofthe latter, so that the cap will fall with its hole over the shan ks ofthe eye, the punch enters a fork w i', Figs. 2 and S, the prongs ofwhich are so arranged that they snugly clasp the punch, and thus scrapethe cap oli? the punch as soon as the latter passes from the dottedposition in Fig. 2 to its highest position.

'lhe plungers D F,guided in the cylinder C, are intended to spread andfasten down the eye-Shanks in the caps when the latter are in thepositions 3 and 4, Fig. 3. These plungers must of course be accuratelylocated overthe points 3 and 4, respectively. rlhe plungers are securedto a common weight ll, which is carried by the rod l, guided centrallyto the cylinder. The end ot plunger D is somewhat ground ott at oppositefaces, so as to be slightly sharpened to readily enter between andspread the eye-shanks, and the plunger F has its end rounded, so that onstriking the eye-Shanks it will bend them over to lie firmly against theinside ot' the cap. The weightearrying i'odl is extended downwardthrough disk B and its shaft, and near its end said rod has a nose T',which is actuated at suitable intervals by an eccentric disk l2 on shaft\V, so as to raise the rod, and after the high part of disk l2 haspassed thenose l the rod and weight H suddenly drop.

Figs. l and 2 show the rod I, weight l-l, and plungers D F raised, inwhich position the nose l is held up by a raised or high part ot' IOSllO

disk I2. lVhen the revolution in the direction of the arrow, Fig. l, hascarried this high part past the nose I', the latter suddenly slides downand the weight H, with the plungers D E, falls, so that the latterenters between the eye-Shanks, after which on thcfurther revolution ofthe disk I2 the plungers are again brought to the raised position, Figs.l and 2. The descending force of the weight H can be augmented by thespring I3, secured to the lower end of rod I and to the connect ing-rodT. The tension of this spring can be regulated by the screw T. The screws is secured to a side of the weight H, and on the descent oi' theweight the end of screw s strikes upon the cylinder C, so as to take upthe lateral jar caused by the striking of the plunger D F.

To properly iixthe disk B in position after each one-sixth revolution,itis provided with six perforations, into which a rod q, Figs. l and .2,enters from below immediately after the passage of the arm a past thelever 7L and after the latter has gone back to -the stop h. For thispurpose the rod q rests with its lower end on the eccentric q', mountedon shaft lV. The eccentric raises the rod q at the proper moment; but assoon as the disk B is to turn the rod q sinks into a lower part of theeccentric, so as to pass out of the perforation in disk B.

The apparatus for forming the eyes has yet to be described, saidapparatus being shown partly in Figs. 2 and 3 and on an enlarged scalein Figs. 6 and 7. The apparatus contains a plunger S, reciprocatingalong the ver= tical plate P, and provided at its upper end with acutter S for cutting off the wire and, a semicircular recess S2. Thelevers K L swing on fulcrums M M and carry the fingers U. The lever Lhas an arm L resting on lever-arm K', against which presses a springK2,so as to separate the levers K L. The pushing arrangement V V V2,Fig. 3, pushes the completed eye from the rod Q onto a spur ot' diskB,and the wire is fed to the eye-forming apparatus by the rollers w,actuated by pulley w and gear-wheels w?. The pulley w' receives motionfrom pulley fr and shaft wa, Figs. l and 2, and the shaft tra. receivesmotion from the shaft XV by means of pulleys o o2. The wire o', Figs. 3and G, for forming the eyes is fed from a suitable supply orbobbin (notshown) between the rollers w and through a suitable hole in theguide-piece S3 until it abnts against the opposite guide-piece S4. Thepieces S'1 form a guide or way for plunger S. The portion of Wirebetween the guide-pieces S3 S4 is cut by cutter S' on the ascent ofplunger S, and as this piece of wire rests directly under the rod Q therise of plunger S will cause the wall of recess S2 to bend the wireabout rod Q, so that the wirel ends point upward, as shown in dottedlines in Fig. 6. While the wire piece so bent is in the position justnamed the levers K L are moved toward one another, as shown by thearrows, Fig. G, to bring the fingers U U together and bend the wire endsabout the rod Q, so that the eye takes the form shown in view l, Fig. l.For this purpose the ends of the fingers U are correspondingly formed,so that the wire ends which are pressed together pass one another-thatis to say, they come to rest alongside of one another.

The eye-forming apparatus is set into a recess A', Fig.' 3, of the tablein such a manner that an end of rod Q is directly in front of that spurd ou disk B which is at the position l.' The other end of rod Q isfastened at Q2. Over the rod moves the pusher V V, formed with circularcross-section at V and four-cornered at V', said pusher being guided ina corresponding gutter of the table A. The round part V passes throughan inlay P in plate P, and the free end of part V lies flush with thatface ot' inlay P against which the plunger S is held by spring f c.lVhen the part V moves toward the free end ot rod Q, the eye o on suchrod is pushed off the rod onto the spur (l of disk B. The movement ofpart V is caused by the actuator V 2 receiving motion fromdisk E bymeans of a roller To, which enters a cam-groove E on disk E. Theactuator V2 is guided by a channel or slot s e', and the slot s il andpin do form a connection between the actuator V2 and pusher part V. Assoon as the roller ro enters the forward part of cam-groove E the pusherVV is moved forward, and when the forward part of groove E has passed onthe pusher is moved back. The plunger S and levers K L are moved,respectively, by an eccentric-disk and anA arm L2 on shaft iV. Theeccentric-disk strikes a lug S on plunger S, so as to raise the plunger,and when the high part of the eccentric has passed the lug SG theplunger S moves back again. The arm L2 acts on the arm L3 of lever L soas to cause the levers L K to move toward one another.

The co-operation of the various parts is such that at each revolution ofthe shaft lV a wire eye is finished and fed to the disk B. At the sametime the punching apparatus forms a cap and places the latter on an eye.The plungers D F bend over the eye-shanks 4on the interior of the cap,and the rollers it' feed a fresh piece of wire to the eye-forming apparatns. To secure the proper sequence of operations, the various armsand eccentrics, as also the disk E, are properly mounted on shaft lV.

The punching mechanism for forming the caps can be left out of themachine-that is, the previously-finished caps can be placed by hand onthe shanks of the eye in position 2, Fig. Since the putting on of thecaps by hand may, however, cause a disturbance in the position of theeye on the spur d and a consequent inclination of the eye-Shanks to-Ward one side or another, the eye must be accurately righted as soon asit reaches the position 3, so that the plunger D will strike beroc ITO

tween the eye-Shanks. For this purpose the machine is provided with arighting device consisting of a slide ch, Figs. l and 3, and anactuatinglever ch, fulcrumed at ch73 and actuated by a lug gc, Fig. 3,ou disk E. The movement of the lever ch presses the slide ch forward,and as the latter has a flat spring ci, provided with a recess ci', theforward motion of the slide will right the eye, since the sides ofrecess et" engage the eye-shanks at each side and thereby press theeye-Shanks into an upright position, after which the slide is drawn backeither by a spring or by a suitable cam-groove on disk E, made to act onlever ch.

What I claim as new, and desire to secure by Letters Patent, is-

l. In a machine for attaching eyes to caps, the combination, With anintermittently-ro tated disk Bfor holding the eye, of plungers D F forbending the eye-Shanks over on the inside of the cap, substantially asdescribed.

In a machine for attaching eyes to caps, the combination, with anintermittently-rotated disk B for holding the eye and plungers D F forbending overthe eye-Shanks on the inside of the cap, of an ejector N fordetaching the completed article from the disk B, substantially asdescribed.

3. The combination, with the machine for attaching eyes to caps, of aneye-formingap paratus consisting of a plunger S for cutting and bendingthe wire, a rod Q, about which the Wire is bent, iingers U U for bendingthe eyeshanks, and a pusher V Y Y2 for pushing the eye off the rod Q,substantiallyas described.

I. The combination, with the swinging punch if and die l), ofareleasing-fork irl', into which the punch is swung in order to bestripped of its cap on the rise of the punch, substantially asdescribed.

5. The combination, with a punch and a reciprocating and rotating rod g,to Which the punch is connected, of mechanism, substantially asdescribed, for reciprocating and rotating the rod, and a releasing forkfor stripping the punch of its adhering article, substantially asdescribed.

(5. The combination, With the eye-carrying device or disk B, of arighting device for the eyes, said righting` device consisting of asplit lat spring et' and a slide ch for moving the spring toward theeye, substantially as decribed.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses. n

HEINRICH ZL'NDORF.

Witnesses:

RUDOLPH FRICK, GHR. KRUEGER.

